Coffee maker



FIG. 1 is a front elevational view of a coffee maker showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

Broken lines shown in the drawings illustrate portions of the coffee maker, and form no part of the claimed design. The dot-dash broken lines shown in FIGS. 1-4 and 7 define, but are not included in, the boundaries of the claimed design. 

CLAIM The ornamental design for a coffee maker, as shown and described. 